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Functionalised poly (vinyl alcohol)/graphene oxide as polymer composite electrolyte membranes

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Functionalised poly (vinyl alcohol)/graphene oxide as polymer composite electrolyte membranes

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dc.contributor.author	Gil Castell, O.
dc.contributor.author	Cerveró, R.
dc.contributor.author	Teruel-Juanes, Roberto
dc.contributor.author	Badia Valiente, José David
dc.contributor.author	Ribes Greus, A.
dc.date.accessioned	2019-11-12T10:40:34Z
dc.date.available	2019-11-12T10:40:34Z
dc.date.issued	2019
dc.identifier.citation	Gil-Castell, O. Cerveró, R. Teruel-Juanes, Roberto Badia Valiente, José David Ribes-Greus, A. 2019 Functionalised poly (vinyl alcohol)/graphene oxide as polymer composite electrolyte membranes Journal of Renewable Materials 7 7 651 661
dc.identifier.uri	https://hdl.handle.net/10550/72172
dc.description.abstract	Crosslinked poly(vinyl alcohol) (PVA) based composite films were prepared as polyelectrolyte membranes for low temperature direct ethanol fuel cells (DEFC). The membranes were functionalised by means of the addition of graphene oxide (GO) and sulfonated graphene oxide (SGO) and crosslinked with sulfosuccinic acid (SSA). The chemical structure was corroborated and suitable thermal properties were found. Although the addition of GO and SGO slightly decreased the proton conductivity of the membranes, a significant reduction of the ethanol solution swelling and crossover was encountered, more relevant for those functionalised with SGO. In general, the composite membranes were stable under simulated service conditions. The addition of GO and SGO particles permitted to buffer the loss and almost retain similar proton conductivity than prior to immersion. These membranes are alternative polyelectrolytes, which overcome current concerns of actual commercial membranes such as the high cost or the crossover phenomenon.
dc.language.iso	eng
dc.relation.ispartof	Journal of Renewable Materials, 2019, vol. 7, num. 7, p. 651-661
dc.subject	Ciència dels materials
dc.subject	Materials compostos
dc.subject	Termoplàstics
dc.title	Functionalised poly (vinyl alcohol)/graphene oxide as polymer composite electrolyte membranes
dc.type	journal article	es_ES
dc.date.updated	2019-11-12T10:40:35Z
dc.identifier.idgrec	134925
dc.rights.accessRights	open access	es_ES